I want a g17 to shoot idpa and have looked at a 3 gen and 4 gen and really like the 4 gen better. I had heard that glocks point a little different than a gun like my xd. The salesmen at the gun store said try the new 4 gen. It pointed excelent and he said now try the 3 gen and for some wierd reason it pointed down compared to 4 gen. I havent read anywhere that they did anything to the grip angle or anything that would of made it aim better. I couldnt even see a difference in angles. Does anyone know what would have caused this or if there was some changes to that. I really liked the gun and cant wait to get it and shoot a glock for the first time.